CVE-2025-67852: Moodle

Medium severity, CVSS 6.1. EPSS: 0.3% chance of exploitation in the next 30 days.

A flaw was found in Moodle. An open redirect vulnerability in the OAuth login flow allows a remote attacker to redirect users to attacker-controlled pages after they have successfully authenticated. This occurs due to insufficient validation of redirect parameters, which could lead to phishing attacks or information disclosure.

Affected products

• Moodle Moodle: before 4.1.22 (fixed in 4.1.22); from 4.4.0, before 4.4.11 (fixed in 4.4.11); from 4.5.0, before 4.5.8 (fixed in 4.5.8); from 5.0.0, before 5.0.4 (fixed in 5.0.4); version 5.1.0 only

Published 2026-02-03. Last modified 2026-06-17.